You have to use the PRINT option to obtain these files. Effective scattering amplitude and phase shift data, with k referenced to threshold for shell nn: k,
,
,
, the reduction factor,
,
.
If you need these, use the PRINT option for FF2CHI greater than 3, which will read 'feff.bin' and write the 'feffNNNN.dat' files in exactly the form you're used to.